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Scientific Name | Cyphia crenata (Thunb.) C.Presl |
Higher Classification | Dicotyledons |
Family | LOBELIACEAE |
Synonyms | Cyphia crenata (Thunb.) C.Presl var. angustifolia E.Wimm., Cyphia crenata (Thunb.) C.Presl var. crenata, Cyphia crenata (Thunb.) C.Presl var. smithiae (L.Bolus) E.Wimm., Lobelia crenata Thunb. |
National Status |
Status and Criteria | Near Threatened B2ab(iii) |
Assessment Date | 2023/08/17 |
Assessor(s) | N.N. Mhlongo |
Justification | This species has an extent of occurrence (EOO) of 56 017 km² and an area of occupancy (AOO) of 108 km². It is known from 20 locations which are suspected to be declining due to habitat degradation from livestock farming in the Northern Cape and competition from invasive alien species in the Western Cape. It is therefore listed as Near Threatened under criterion B. |
Distribution |
Endemism | South African endemic |
Provincial distribution | Northern Cape, Western Cape |
Range | This species occurs from the Richtersveld in northern Namaqualand to the Cape Peninsula. |
Habitat and Ecology |
Major system | Terrestrial |
Major habitats | Central Richtersveld Mountain Shrubland, Vanrhynsdorp Gannabosveld, Cape Flats Dune Strandveld, Swartland Granite Renosterveld, Atlantis Sand Fynbos |
Description | Plants grow in sandy flats and slopes. |
Threats |
| This species is threatened by habitat degradation due to livestock farming in the Helskloof area. Competition from invasive alien species is an extremely severe threat to subpopulations in Riverlands, Kalkoond and Wemmershoek and this threat is projected to continue into the future. |
Population |
This species is known from 20 subpopulations and is the population is assumed to be declining due to habitat degradation from livestock farming and the impacts of invasive alien species.
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Population trend | Decreasing |
Assessment History |
Taxon assessed |
Status and Criteria |
Citation/Red List version | | Cyphia crenata (Thunb.) C.Presl var. angustifolia E.Wimm. | Least Concern | Raimondo et al. (2009) | | Cyphia crenata (Thunb.) C.Presl var. crenata | Least Concern | Raimondo et al. (2009) | |
Bibliography |
Goldblatt, P. and Manning, J.C. 2000. Cape Plants: A conspectus of the Cape Flora of South Africa. Strelitzia 9. National Botanical Institute, Cape Town.
Govaerts, R. 1996. World Checklist of Seed Plants 1, 2:1-492, MIM, Deurne.
Manning, J.C. and Goldblatt, P. 2012. Plants of the Greater Cape Floristic Region 1: The Core Cape Flora. Strelitzia 29. South African National Biodiversity Institute, Pretoria.
Raimondo, D., von Staden, L., Foden, W., Victor, J.E., Helme, N.A., Turner, R.C., Kamundi, D.A. and Manyama, P.A. 2009. Red List of South African Plants. Strelitzia 25. South African National Biodiversity Institute, Pretoria.
Snijman, D.A. 2013. Plants of the Greater Cape Floristic Region 2: The extra Cape flora. Strelitzia 30. South African National Biodiversity Institute, Pretoria.
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Citation |
| Mhlongo, N.N. 2023. Cyphia crenata (Thunb.) C.Presl. National Assessment: Red List of South African Plants version . Accessed on 2024/12/06 |
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